/**
 * base64js
 */
/**
 * base64js
 * base64js.toByteArray(d.input)
 * base64js.fromByteArray(c);
 * @author c.z.s
 * @email 1048829253@qq.com
 * @company
 * @date 2018-07
 *
 */
(function(r){if(typeof exports==="object"&&typeof module!=="undefined"){module.exports=r()}else{if(typeof define===
    "function"&&define.amd){define([],r)}else{var e;if(typeof window!=="undefined"){e=window}else{if(typeof global
    !=="undefined"){e=global}else{if(typeof self!=="undefined"){e=self}else{e=this}}}e.base64js=r()}}})(function(){
  var r,e,t;return function r(e,t,n){function o(i,a){if(!t[i]){if(!e[i]){var u=typeof require=="function"&&require;if(!a&&u){
    return u(i,!0)}if(f){return f(i,!0)}var d=new Error("Cannot find module '"+i+"'");throw d.code="MODULE_NOT_FOUND",d}
    var c=t[i]={exports:{}};e[i][0].call(c.exports,function(r){var t=e[i][1][r];return o(t?t:r)},c,c.exports,r,e,t,n)}return t[i].exports}
    var f=typeof require=="function"&&require;for(var i=0;i<n.length;i++){o(n[i])}return o}({"/":[function(r,e,t){t.byteLength=c;
      t.toByteArray=v;t.fromByteArray=s;var n=[];var o=[];var f=typeof Uint8Array!=="undefined"?Uint8Array:Array;
      var i="ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/";for(var a=0,u=i.length;a<u;++a){n[a]=i[a];
        o[i.charCodeAt(a)]=a}o["-".charCodeAt(0)]=62;o["_".charCodeAt(0)]=63;function d(r){var e=r.length;if(e%4>0){
        throw new Error("Invalid string. Length must be a multiple of 4")}return r[e-2]==="="?2:r[e-1]==="="?1:0}
      function c(r){return r.length*3/4-d(r)}function v(r){var e,t,n,i,a;var u=r.length;i=d(r);a=new f(u*3/4-i);t=i>0?u-4:u;
        var c=0;for(e=0;e<t;e+=4){n=o[r.charCodeAt(e)]<<18|o[r.charCodeAt(e+1)]<<12|o[r.charCodeAt(e+2)]<<6|o[r.charCodeAt(e+3)];
          a[c++]=n>>16&255;a[c++]=n>>8&255;a[c++]=n&255}if(i===2){n=o[r.charCodeAt(e)]<<2|o[r.charCodeAt(e+1)]>>4;a[c++]=n&255}
        else{if(i===1){n=o[r.charCodeAt(e)]<<10|o[r.charCodeAt(e+1)]<<4|o[r.charCodeAt(e+2)]>>2;a[c++]=n>>8&255;a[c++]=n&255}}return a}
      function l(r){return n[r>>18&63]+n[r>>12&63]+n[r>>6&63]+n[r&63]}function h(r,e,t){var n;var o=[];for(var f=e;f<t;f+=3){
        n=(r[f]<<16)+(r[f+1]<<8)+r[f+2];o.push(l(n))}return o.join("")}function s(r){var e;var t=r.length;var o=t%3;var f="";var i=[];
        var a=16383;for(var u=0,d=t-o;u<d;u+=a){i.push(h(r,u,u+a>d?d:u+a))}if(o===1){e=r[t-1];f+=n[e>>2];f+=n[e<<4&63];f+="=="}else{if(o===2){
          e=(r[t-2]<<8)+r[t-1];f+=n[e>>10];f+=n[e>>4&63];f+=n[e<<2&63];f+="="}}i.push(f);return i.join("")}},{}]},{},[])("/")});


/**
 * 国密SM4加密算法
 * @author c.z.s
 * @email 1048829253@qq.com
 * @company GDT-ZWZX-DEV-PT
 * @date 2018-07
 */
function SM4_Context() {
  this.mode=1;
  this.isPadding = true;
  this.sk = new Array(32);
}

function SM4() {
  this.SM4_ENCRYPT=1;
  this.SM4_DECRYPT = 0;

  var SboxTable = [0xd6,0x90,0xe9,0xfe,0xcc,0xe1,0x3d,0xb7,0x16,0xb6,0x14,0xc2,0x28,0xfb,0x2c,0x05,
    0x2b,0x67,0x9a,0x76,0x2a,0xbe,0x04,0xc3,0xaa,0x44,0x13,0x26,0x49,0x86,0x06,0x99,
    0x9c,0x42,0x50,0xf4,0x91,0xef,0x98,0x7a,0x33,0x54,0x0b,0x43,0xed,0xcf,0xac,0x62,
    0xe4,0xb3,0x1c,0xa9,0xc9,0x08,0xe8,0x95,0x80,0xdf,0x94,0xfa,0x75,0x8f,0x3f,0xa6,
    0x47,0x07,0xa7,0xfc,0xf3,0x73,0x17,0xba,0x83,0x59,0x3c,0x19,0xe6,0x85,0x4f,0xa8,
    0x68,0x6b,0x81,0xb2,0x71,0x64,0xda,0x8b,0xf8,0xeb,0x0f,0x4b,0x70,0x56,0x9d,0x35,
    0x1e,0x24,0x0e,0x5e,0x63,0x58,0xd1,0xa2,0x25,0x22,0x7c,0x3b,0x01,0x21,0x78,0x87,
    0xd4,0x00,0x46,0x57,0x9f,0xd3,0x27,0x52,0x4c,0x36,0x02,0xe7,0xa0,0xc4,0xc8,0x9e,
    0xea,0xbf,0x8a,0xd2,0x40,0xc7,0x38,0xb5,0xa3,0xf7,0xf2,0xce,0xf9,0x61,0x15,0xa1,
    0xe0,0xae,0x5d,0xa4,0x9b,0x34,0x1a,0x55,0xad,0x93,0x32,0x30,0xf5,0x8c,0xb1,0xe3,
    0x1d,0xf6,0xe2,0x2e,0x82,0x66,0xca,0x60,0xc0,0x29,0x23,0xab,0x0d,0x53,0x4e,0x6f,
    0xd5,0xdb,0x37,0x45,0xde,0xfd,0x8e,0x2f,0x03,0xff,0x6a,0x72,0x6d,0x6c,0x5b,0x51,
    0x8d,0x1b,0xaf,0x92,0xbb,0xdd,0xbc,0x7f,0x11,0xd9,0x5c,0x41,0x1f,0x10,0x5a,0xd8,
    0x0a,0xc1,0x31,0x88,0xa5,0xcd,0x7b,0xbd,0x2d,0x74,0xd0,0x12,0xb8,0xe5,0xb4,0xb0,
    0x89,0x69,0x97,0x4a,0x0c,0x96,0x77,0x7e,0x65,0xb9,0xf1,0x09,0xc5,0x6e,0xc6,0x84,
    0x18,0xf0,0x7d,0xec,0x3a,0xdc,0x4d,0x20,0x79,0xee,0x5f,0x3e,0xd7,0xcb,0x39,0x48];

  var FK = [ 0xa3b1bac6, 0x56aa3350, 0x677d9197, 0xb27022dc ];

  var CK = [ 0x00070e15,0x1c232a31,0x383f464d,0x545b6269,
    0x70777e85,0x8c939aa1,0xa8afb6bd,0xc4cbd2d9,
    0xe0e7eef5,0xfc030a11,0x181f262d,0x343b4249,
    0x50575e65,0x6c737a81,0x888f969d,0xa4abb2b9,
    0xc0c7ced5,0xdce3eaf1,0xf8ff060d,0x141b2229,
    0x30373e45,0x4c535a61,0x686f767d,0x848b9299,
    0xa0a7aeb5,0xbcc3cad1,0xd8dfe6ed,0xf4fb0209,
    0x10171e25,0x2c333a41,0x484f565d,0x646b7279 ];

  this.GET_ULONG_BE=function(b,i) {
    return (b[i] & 0xff) << 24 | ((b[i + 1] & 0xff) << 16) | ((b[i + 2] & 0xff) << 8) | (b[i + 3] & 0xff) & 0xffffffff;
  }

  this.PUT_ULONG_BE=function( n, b, i){
    var t1=(0xFF & (n >> 24));
    var t2=(0xFF & (n >> 16));
    var t3=(0xFF & (n >> 8));
    var t4=(0xFF & (n));
    b[i] = t1>128?t1-256:t1;
    b[i + 1] = t2>128?t2-256:t2;
    b[i + 2] = t3>128?t3-256:t3;
    b[i + 3] = t4>128?t4-256:t4;
  }

  this.SHL=function(x,n){
    return (x & 0xFFFFFFFF) << n;
  }

  this.ROTL=function( x,  n){
    var s =this.SHL(x, n);
    var ss= x >> (32 - n);
    return this.SHL(x, n) | x >> (32 - n);
  }


  this.sm4Lt=function(ka){
    var bb = 0;
    var c = 0;
    var a = new Array(4);
    var b = new Array(4);
    this.PUT_ULONG_BE(ka, a, 0);
    b[0] = this.sm4Sbox(a[0]);
    b[1] = this.sm4Sbox(a[1]);
    b[2] = this.sm4Sbox(a[2]);
    b[3] = this.sm4Sbox(a[3]);
    bb = this.GET_ULONG_BE(b, 0);
    c = bb ^ this.ROTL(bb, 2) ^ this.ROTL(bb, 10) ^ this.ROTL(bb, 18) ^ this.ROTL(bb, 24);
    return c;
  }

  this.sm4F=function( x0,  x1,  x2,  x3,  rk){
    return x0 ^ this.sm4Lt(x1 ^ x2 ^ x3 ^ rk);
  }

  this.sm4CalciRK=function(ka){
    var bb = 0;
    var rk = 0;
    var a = new Array(4);
    var b = new Array(4);
    this.PUT_ULONG_BE(ka, a, 0);
    b[0] = this.sm4Sbox(a[0]);
    b[1] = this.sm4Sbox(a[1]);
    b[2] = this.sm4Sbox(a[2]);
    b[3] = this.sm4Sbox(a[3]);
    bb = this.GET_ULONG_BE(b, 0);
    rk = bb ^ this.ROTL(bb, 13) ^ this.ROTL(bb, 23);
    return rk;
  }



  this.sm4Sbox=function(inch){
    var i = inch & 0xFF;
    var retVal = SboxTable[i];
    return  retVal>128?retVal-256:retVal;
  }

  this.sm4_setkey_enc = function(ctx, key){
    if (ctx == null) {
      alert("ctx is null!");
      return false;
    }
    if (key == null || key.length != 16){
      alert("key error!");
      return false;
    }
    ctx.mode = this.SM4_ENCRYPT;
    this.sm4_setkey(ctx.sk, key);

  };

  this.sm4_setkey = function(SK, key){
    var MK = new Array(4);
    var k =  new Array(36);
    var i = 0;
    MK[0] = this.GET_ULONG_BE(key, 0);
    MK[1] = this.GET_ULONG_BE(key, 4);
    MK[2] = this.GET_ULONG_BE(key, 8);
    MK[3] = this.GET_ULONG_BE(key, 12);
    k[0] = MK[0] ^  FK[0];
    k[1] = MK[1] ^  FK[1];
    k[2] = MK[2] ^  FK[2];
    k[3] = MK[3] ^  FK[3];
    for (var i=0; i < 32; i++){
      k[(i + 4)] = (k[i] ^ this.sm4CalciRK(k[(i + 1)] ^ k[(i + 2)] ^ k[(i + 3)] ^ CK[i]));
      SK[i] = k[(i + 4)];
    }

  }
  this.padding=function(input,mode){
    if (input == null){
      return null;
    }
    var ret =  null;
    if (mode == this.SM4_ENCRYPT){
      var p = parseInt(16 - input.length % 16);
      ret = input.slice(0);
      for (var i = 0; i < p; i++){
        ret[input.length + i] = p;
      }
    }else{
      var p = input[input.length - 1];
      ret=input.slice(0,input.length - p);
    }
    return ret;
  }
  this.sm4_one_round=function(sk, input, output){
    var  i = 0;
    var ulbuf = new Array(36);
    ulbuf[0] = this.GET_ULONG_BE(input, 0);
    ulbuf[1] = this.GET_ULONG_BE(input, 4);
    ulbuf[2] = this.GET_ULONG_BE(input, 8);
    ulbuf[3] = this.GET_ULONG_BE(input, 12);
    while (i < 32){
      ulbuf[(i + 4)] = this.sm4F(ulbuf[i], ulbuf[(i + 1)], ulbuf[(i + 2)], ulbuf[(i + 3)], sk[i]);
      i++;
    }
    this.PUT_ULONG_BE(ulbuf[35], output, 0);
    this.PUT_ULONG_BE(ulbuf[34], output, 4);
    this.PUT_ULONG_BE(ulbuf[33], output, 8);
    this.PUT_ULONG_BE(ulbuf[32], output, 12);

  }



  this.sm4_crypt_ecb=function(ctx,input){
    if (input == null){
      alert("input is null!");
    }
    if ((ctx.isPadding) && (ctx.mode == this.SM4_ENCRYPT)){
      input = this.padding(input, this.SM4_ENCRYPT);
    }

    var i=0;
    var length = input.length;
    var bous = new Array();
    for(; length > 0; length -= 16)
    {
      var out = new Array(16);
      var ins=input.slice(i*16,(16*(i+1)));
      this.sm4_one_round(ctx.sk, ins, out)
      bous=bous.concat(out);
      i++;
    }

    var output = bous;
    if (ctx.isPadding && ctx.mode == this.SM4_DECRYPT)
    {
      output = this.padding(output, this.SM4_DECRYPT);
    }
    for(var i=0;i<output.length;i++){
      if(output[i]<0){
        output[i]=output[i]+256;
      }
    }
    return output;
  }

  this.sm4_crypt_cbc=function(ctx, iv, input){
    if (iv == null || iv.length != 16) {
      alert("iv error!");
    }

    if (input == null){
      alert("input is null!");
    }

    if (ctx.isPadding && ctx.mode == this.SM4_ENCRYPT) {
      input = this.padding(input, this.SM4_ENCRYPT);
    }

    var i = 0;
    var length = input.length;
    var bous =new Array();
    if (ctx.mode == this.SM4_ENCRYPT){
      var k=0;
      for(; length > 0; length -= 16){
        var out = new Array(16);
        var out1 = new Array(16);
        var ins=input.slice(k*16,(16*(k+1)));

        for (i = 0; i < 16; i++)
        {
          out[i] = (ins[i] ^ iv[i]);
        }
        this.sm4_one_round(ctx.sk, out, out1);
        iv=out1.slice(0,16);
        bous=bous.concat(out1);
        k++;
      }
    }
    else
    {
      var temp = [];
      var k=0;
      for(; length > 0; length -= 16)
      {
        var out = new Array(16);
        var out1 = new Array(16);
        var ins=input.slice(k*16,(16*(k+1)));
        temp=ins.slice(0,16);
        sm4_one_round(ctx.sk, ins, out);
        for (i = 0; i < 16; i++)
        {
          out1[i] = (out[i] ^ iv[i]);
        }
        iv=temp.slice(0,16);
        bous=bous.concat(out1);
        k++;
      }
    }

    var output = bous;
    if (ctx.isPadding && ctx.mode == this.SM4_DECRYPT)
    {
      output = this.padding(output, this.SM4_DECRYPT);
    }

    for(var i=0;i<output.length;i++){
      if(output[i]<0){
        output[i]=output[i]+256;
      }
    }
    return output;
  }
}


function SM4Util() {
  this.secretKey="Ag2020554f5e42gd";
  this.iv = "";
  this.hexString = false;

  this.encryptData_ECB=function(plainText){
    try{
      var sm4 = new SM4();
      var ctx = new SM4_Context();
      ctx.isPadding = true;
      ctx.mode = sm4.SM4_ENCRYPT;
      var keyBytes= stringToByte(this.secretKey);
      sm4.sm4_setkey_enc(ctx, keyBytes);
      var encrypted = sm4.sm4_crypt_ecb(ctx, stringToByte(plainText));
      var cipherText = base64js.fromByteArray(encrypted);
      if (cipherText != null && cipherText.trim().length > 0)
      {
        cipherText.replace(/(\s*|\t|\r|\n)/g, "");
      }
      return cipherText;
    }catch (e){
      console.error(e);
      return null;
    }

  }

  this.encryptData_CBC=function(plainText){
    try{
      var sm4 = new SM4();
      var ctx = new SM4_Context();
      ctx.isPadding = true;
      ctx.mode = sm4.SM4_ENCRYPT;

      var keyBytes = stringToByte(this.secretKey) ;
      var ivBytes= stringToByte(this.iv) ;

      sm4.sm4_setkey_enc(ctx, keyBytes);
      var encrypted = sm4.sm4_crypt_cbc(ctx, ivBytes, stringToByte(plainText));
      var cipherText = base64js.fromByteArray(encrypted);
      if (cipherText != null && cipherText.trim().length > 0)
      {
        cipherText.replace(/(\s*|\t|\r|\n)/g, "");
      }
      return cipherText;
    }
    catch ( e)
    {
      console.error(e);
      return null;
    }
  }

  stringToByte=function(str) {
    var bytes = new Array();
    var len, c;
    len = str.length;
    for(var i = 0; i < len; i++) {
      c = str.charCodeAt(i);
      if(c >= 0x010000 && c <= 0x10FFFF) {
        bytes.push(((c >> 18) & 0x07) | 0xF0);
        bytes.push(((c >> 12) & 0x3F) | 0x80);
        bytes.push(((c >> 6) & 0x3F) | 0x80);
        bytes.push((c & 0x3F) | 0x80);
      } else if(c >= 0x000800 && c <= 0x00FFFF) {
        bytes.push(((c >> 12) & 0x0F) | 0xE0);
        bytes.push(((c >> 6) & 0x3F) | 0x80);
        bytes.push((c & 0x3F) | 0x80);
      } else if(c >= 0x000080 && c <= 0x0007FF) {
        bytes.push(((c >> 6) & 0x1F) | 0xC0);
        bytes.push((c & 0x3F) | 0x80);
      } else {
        bytes.push(c & 0xFF);
      }
    }
    return bytes;
  }


  byteToString=function(arr) {
    if(typeof arr === 'string') {
      return arr;
    }
    var str = '',
        _arr = arr;
    for(var i = 0; i < _arr.length; i++) {
      var one = _arr[i].toString(2),
          v = one.match(/^1+?(?=0)/);
      if(v && one.length == 8) {
        var bytesLength = v[0].length;
        var store = _arr[i].toString(2).slice(7 - bytesLength);
        for(var st = 1; st < bytesLength; st++) {
          store += _arr[st + i].toString(2).slice(2);
        }
        str += String.fromCharCode(parseInt(store, 2));
        i += bytesLength - 1;
      } else {
        str += String.fromCharCode(_arr[i]);
      }
    }
    return str;
  }
};
